From 70fe07f83a5dd3d3fa6f571e7212be1d36a58f5c Mon Sep 17 00:00:00 2001
From: vit9696 <vit9696@users.noreply.github.com>
Date: Mon, 4 Nov 2019 20:39:44 +0300
Subject: [PATCH] OcBootManagementLib: Disable experimental ballooning
 allocation

Currently this feature does not seem to be benefitial, as on low memory
machines it prevents booting from recovery by allocating too much memory
instead of actually improving the situation. Perhaps this feature is to
be removed in the future.
---
 Library/OcBootManagementLib/DefaultEntryChoice.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Library/OcBootManagementLib/DefaultEntryChoice.c b/Library/OcBootManagementLib/DefaultEntryChoice.c
index ac12a6af..cffb016e 100644
--- a/Library/OcBootManagementLib/DefaultEntryChoice.c
+++ b/Library/OcBootManagementLib/DefaultEntryChoice.c
@@ -905,9 +905,12 @@ InternalLoadBootEntry (
     // Assume that DMG load requires a lot of memory.
     //
     UseBallooning = Context->BalloonAllocator != NULL;
+
+#ifdef OC_ENABLE_BALLOONING
     if (UseBallooning) {
       Context->BalloonAllocator (TRUE);
     }
+#endif
 
     DmgLoadContext->DevicePath = BootEntry->DevicePath;
     DevicePath = InternalLoadDmg (
@@ -917,9 +920,11 @@ InternalLoadBootEntry (
                    UseBallooning
                    );
     if (DevicePath == NULL) {
+#ifdef OC_ENABLE_BALLOONING
       if (UseBallooning) {
         Context->BalloonAllocator (FALSE);
       }
+#endif
       return EFI_UNSUPPORTED;
     }
   } else if (BootEntry->Type == OcBootCustom && BootEntry->DevicePath == NULL) {
@@ -1023,9 +1028,11 @@ InternalLoadBootEntry (
     }
   } else {
     InternalUnloadDmg (DmgLoadContext);
+#ifdef OC_ENABLE_BALLOONING
     if (UseBallooning) {
       Context->BalloonAllocator (FALSE);
     }
+#endif
   }
 
   return Status;